Get creative with emojis in email subject lines to increase open rates! Let your imagination run wild. Don’t forget to add a short preview description to encourage people to click on your email. Don’t make ‘em yawn! Keep your emails exciting and brief. Boost your email opens with a punchy subject line. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Don’t forget to add a fun, relevant call-to-action button to your email. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!